Here's how I did mine last weekend. I've been reading on this and there's a lot of discussion about being vented to the atmosphere but so far I have had no oily residue or problems. I have had the same setup on my 6.0 for quite a while now with no problems. I would eventually like to plumb it into my exhaust but there seems to be a lot of variables so, I'm just going to wait for now. I am using a true 1 inch hose though which is what the factory system uses to begin with. This is speculation on my part but I believe the guys that are having trouble with venting it to the atmosphere and building up pressure and/or blowing oil all over the bottom of their trucks are choking it down to a smaller size hose? I did not use heater hose though, do yourself a favor and go down to tractor supply or somewhere that sells fuel hoses and buy a 1 inch fuel transfer hose. They're made to hold up against petroleum products. It'll cost you a little more but hold up better.